Question 1: What is the shelf life of Valvoline's NextGen motor oils if stored in sealed bottles? What if the oil is stored in a garage that's exposed to daily temperature variations?
Question 2: If I use NextGen or Maxlife NextGen oil in a car that's driven only 4500 miles per year, how frequently should the oil be changed? Is it ok to wait until the oil was used for at least 3000 miles, or is there some kind of time expiration limit once the oil once its put into an engine?
Question 2: If I use NextGen or Maxlife NextGen oil in a car that's driven only 4500 miles per year, how frequently should the oil be changed? Is it ok to wait until the oil was used for at least 3000 miles, or is there some kind of time expiration limit once the oil once its put into an engine?